Does Insurance Cover TMS Therapy?

Unlike ketamine infusions, which are almost always cash-pay, TMS for depression is routinely covered by insurance — including Medicare and most large commercial plans. The catch is that coverage comes with criteria, paperwork, and prior authorization. Knowing what insurers look for before your first appointment can save you weeks of delay and thousands of dollars.

The short version

• Depression: TMS for major depressive disorder is FDA-cleared and widely covered by Medicare and commercial insurers for people who have tried and not responded to antidepressants.
• Typical criteria: a diagnosis of major depression, two or more failed antidepressant trials (some plans require more), often a trial of psychotherapy, and a baseline score on a validated depression scale.
• Prior authorization is almost always required. The clinic usually submits it for you.
• OCD: FDA-cleared with deep TMS, but coverage is patchier — some Medicare contractors and commercial plans cover it; others still call it experimental.
• Accelerated TMS and SAINT: generally not covered by private insurers yet.

Medicare coverage

Medicare covers TMS for depression through Local Coverage Determinations (LCDs) issued by regional contractors, so exact wording varies by state. A representative example is the LCD issued by WPS (L34641), which covers TMS for adults with severe major depressive disorder who meet one of these:

• No adequate response to antidepressants from at least two different drug classes in the current episode, at adequate dose and duration
• Intolerance to antidepressants from at least two classes
• A prior good response to TMS in an earlier episode
• Being a candidate for ECT, where TMS is a less invasive alternative

That policy also requires a trial of evidence-based psychotherapy without significant improvement, an order from a psychiatrist, and treatment under physician supervision. It lists exclusions including seizure history, psychosis in the current episode, and implanted metal or devices near the coil. Retreatment may be covered if you relapse after a prior course that produced more than 50% improvement.

Medicare Advantage plans must cover what Original Medicare covers, but may add their own prior-authorization steps.

Commercial insurance coverage

Commercial criteria tend to be stricter than Medicare's. Aetna's clinical policy is a useful illustration:

• Severe major depression confirmed by a psychiatrist using a validated scale such as the HAM-D, MADRS, or BDI
• Failure of two antidepressants from different classes, each for at least 8 weeks, plus failure of an augmentation strategy
• Age 15 or older (with additional requirements for adolescents)
• Coverage of up to 30 sessions plus 6 taper sessions, with more reviewed case by case
• Retreatment covered if a prior course produced at least 50% improvement lasting at least two months

Other plans vary. Some require four failed medication trials; some accept the PHQ-9 as the severity measure while others want a clinician-rated scale like the HAM-D. Almost all require that you're not actively psychotic, haven't had recent substance misuse, and don't have metal or devices near the head. Medicaid coverage exists in many states, with criteria set state by state.

What you'll need to document

Before submitting, the clinic will typically gather:

1. Your diagnosis — major depressive disorder, usually rated moderate-to-severe or severe.
2. Medication history — drug names, doses, durations, and why each was stopped (didn't work, side effects). Old pharmacy records help if you can't remember.
3. Psychotherapy history — dates and type of therapy, if your plan requires it.
4. A baseline depression score — PHQ-9, HAM-D, BDI, or MADRS, depending on the plan.
5. A screening for contraindications — seizure history, implants, psychosis.

The most common reason for delay is incomplete medication records. If you've seen multiple prescribers, request records from each before your consultation.

How prior authorization works

1. Consultation. A psychiatrist evaluates you and confirms TMS is appropriate.
2. Submission. The clinic sends the request and supporting records to your insurer.
3. Decision. Turnaround varies by plan, often days to a couple of weeks; urgent requests may move faster.
4. Approval for a set number of sessions. Initial approvals often cover the standard course; extensions require a new request with progress scores.

Ask the clinic directly: "Do you have staff who handle TMS prior authorizations?" Clinics that do this every day know each payer's quirks.

If you're denied: appeals

Denials are common and often reversible. Typical reasons include missing medication details, an insufficient number of documented trials, or a severity score below the plan's threshold.

• Read the denial letter for the specific criterion you didn't meet.
• Fix the documentation if records were incomplete, and resubmit.
• Request a peer-to-peer review, where your psychiatrist speaks directly with the insurer's reviewer.
• File a formal internal appeal, and if that fails, request an external review by an independent reviewer — a right most US health plans must offer.

What about OCD?

The FDA cleared BrainsWay's deep TMS as an add-on treatment for obsessive-compulsive disorder in 2018. Coverage has been slower to follow. Palmetto GBA, a Medicare contractor serving several southeastern states, finalized an OCD coverage policy in 2022, and some commercial plans now cover it. Others — Aetna among them — still list TMS for OCD as experimental. If you're seeking TMS for OCD, ask your insurer specifically and expect to document prior medication and exposure-based therapy.

Coverage for accelerated TMS and SAINT

Most private insurers, including Aetna, currently treat accelerated TMS and SAINT as experimental. Medicare has created hospital payment pathways for SAINT, so some Medicare patients can access it through participating hospitals. Everyone else should generally expect to pay cash. See accelerated TMS and SAINT for details and TMS costs for typical prices.

Bottom line

If you have depression that hasn't responded to at least two antidepressants, there's a good chance your insurance will cover TMS — but only with the right documentation and prior authorization. Gather your medication history early, pick a clinic that handles authorizations routinely, and don't give up after a first denial. If TMS isn't covered for you, Spravato is another insurance-friendly option, and our TMS vs. ketamine guide compares the two. When you're ready, find a TMS provider near you and ask about coverage before you book.